in this paper we focus on a special class of commutative local‎ ‎rings called spap-rings and study the relationship between this‎ ‎class and other classes of rings‎. ‎we characterize the structure of‎ ‎modules and especially‎, ‎the prime submodules of free modules over‎ ‎an spap-ring and derive some basic properties‎. ‎then we answer the‎ ‎question of lam and reyes about strongly oka ideals fam...

One simile that solitary shines In the dry desert of a thousand lines. The collection of all subsets of cardinality k of a set with v elements (k < v) has the property that any subset of t elements, with 0 ≤ t ≤ k, is contained in precisely v−t k−t subsets of size k. The subsets of size k provide therefore a nice covering for the subsets of a lesser cardinality. Observe that the number of subse...

The term “argument structure” is used here to refer to the syntactic configuration projected by a lexical item. It is the system of structural relations holding between heads (nuclei) and arguments linked to them in the roster of syntactic properties listed for individual items in the lexicon. While a lexical entry is much more than this, of course, argument structure in the sense intended here...

Abstract: For disadvantages of the large flux and torque ripple and current waveform distortion of Direct Torque Control (BASIC-DTC), the DTC scheme for induction motor based on torque angle closed-loop control was presented and the proposed scheme was realized with three methods of torque angle closed-loop control. The main characteristics of three methods of torque angle closed-loop control f...

Optimistic execution techniques are widely used in the field of parallel discrete event simulation. In this paper we show that optimistic execution can also be used to parallelize program control structures. We discuss the requirements for handling unbounded constructs and demonstrate the need for a flexible time– stamp allocation scheme. We present a scheme using variable–length time–stamps wh...

I. BASIC ARCHITECTURE The topic of this paper is a low-cost and self contained biometric verification device, devoted to physical or data access control. Because of its modularity, various means of biometric verification, as fingerprint, voice, handwritten signature, may be comblned by simply plugging in special-purpose cards and sensors. By combination, it is possible to increase the degree of...

This paper seeks to analyze the ―7.23‖ Yongwen Railway accident in China from a system theoretic perspective. In particular, the STAMP safety control structure for this accident has been constructed and divided into two respective processes including system development and operation, which are then analyzed at each level. Furthermore, to understand why and how the system evolved over time, syst...